EP 3150026 B1 20201111 - LED DRIVER CIRCUIT, LED CIRCUIT AND DRIVE METHOD
Title (en)
LED DRIVER CIRCUIT, LED CIRCUIT AND DRIVE METHOD
Title (de)
LED-TREIBERSCHALTUNG, LED-SCHALTUNG UND ANSTEUERUNGSVERFAHREN
Title (fr)
CIRCUIT D'ATTAQUE DE DEL, CIRCUIT DE LED ET PROCÉDÉ D'ENTRAÎNEMENT
Publication
Application
Priority
- CN 2014078902 W 20140530
- EP 14187643 A 20141003
- IN 1773CH2015 A 20150402
- EP 2015060688 W 20150513
Abstract (en)
[origin: WO2015180969A1] A driver circuit, comprising: an input for receiving an input power; an input capacitor (C2) for buffering the input power; a switched mode power converter for supplying a driving current from the buffered input power; a current limiter coupled to the switched mode power converter, wherein the current limiter is configured to control the switched mode power converter to limit the driving current at a driving load limit, wherein the current limiter comprises a controllable switch (Q3) configured to control the switched mode power converter; and a control element (301) configured to sense a variation of the input power, the control element coupled to the controllable switch and adjusting the controllable switch based on the variation of the input power, such that the current limiter is configured to adjust the driving load limit based on the variation of the input power, wherein said control element comprises: a current sensing element (R1) in series in the line between the input capacitor (C2) and the input.
IPC 8 full level
H05B 44/00 (2022.01); H05B 45/37 (2020.01)
CPC (source: CN EP RU US)
H02M 1/08 (2013.01 - US); H02M 1/12 (2013.01 - US); H02M 1/42 (2013.01 - US); H02M 1/44 (2013.01 - US); H02M 3/156 (2013.01 - US); H05B 44/00 (2022.01 - RU); H05B 45/00 (2020.01 - EP US); H05B 45/37 (2020.01 - CN); H05B 45/3725 (2020.01 - EP US); H05B 45/375 (2020.01 - EP US); H05B 45/38 (2020.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2015180969 A1 20151203; CN 106416428 A 20170215; CN 106416428 B 20181012; EP 3150026 A1 20170405; EP 3150026 B1 20201111; JP 2017521986 A 20170803; JP 6259131 B2 20180110; RU 2016152246 A 20180702; RU 2016152246 A3 20181217; RU 2679893 C2 20190214; US 2017215241 A1 20170727
DOCDB simple family (application)
EP 2015060688 W 20150513; CN 201580028709 A 20150513; EP 15723489 A 20150513; JP 2016569918 A 20150513; RU 2016152246 A 20150513; US 201515315358 A 20150513